Door hinge



Sept. 4, 1923. 1,467,124 L. A. sUNDE ET AL.

DOOR HINGE Filed July 15 1921 a 2 4 Tfr-l Patented Sept. 4, 1923.

PATENT rFicE.

LOUIS A. SUNDE AND BICI-IARD H. DALTON, OF CLEVELAND, OHIO.

DOOR HINGE.

Application led .Tuly 15,

T 0 all whom t may concern:

Be it known that we, LOUIS A. SUNDE and RICHARD H. DALTON, citizens ofthe United States, residing at E. Cleveland, in the county of Cuyahogaand State of Ohio, have invented certain new and useful Improvements ina Door Hinge, of which the following is a specific-ation.

The present invention relates to an improvement in spring hinges fordoors, and the object of the invention is to provide a hinge comprisingtwo corresponding members having spring operating elements adapted to becompletely enclosed and concealed within round openings bored into thedoor and the jamb or frame for the door.

In the accompanying drawing, Fig. 1 is a plan view and section of a doorand door frame showing the hinge and door in a closed position, and Fig.2 is a similar view showing a door hinge in apartly open position withthe springs under tension. Fig. 3 is a vertical section centrallythrough the hinged parts on line 3 3, of Fig. 1. Figs. 11 and 5 areperspective views of the two hinged plates.

The invention comprises two relatively long and narrow flat pla-tes 2and 3 respectively, each having a round boss or hub 4 -at one sidecentrally between the ends of the plate. The end portion 5 of each bossl is reduced in diameter and a round recess with a continuing opening ofsmaller diameter extends through each plate and its boss. Plate 2 isalso provided with a lateral lug 6 lia-ving a round channel or groove 7vertically at its front side, and a short pin 8 projects from the faceof this plate at one side of said groove and adjacent the round openingin the plate. Plate 3 is also provided with a lateral projection 11having a round portion 12 adapted to rest and turn within the groove 7when the said plates are placed facing each other, and a small opening14- is provided in the face of plate 3 to receive pin 8 on plate 2.lRound bolts or links 15 and 16, respectively are adapted to extend andslide back and forth within the reduced openings in the bosses of saidplates, and the meeting ends of said bolts or links are enlarged andpivotally connected 1921. Serial No. 484,914.

together. As shown, one end of bolt 16 is forked to receive a reducedtongue or en: tremity on the other bolt 15and these enlarged ends of thebolts are adapted to be confined within the larger opening or recessesin said plates. The outer or free end of the stem or main body of eachbolt or link is screw-threaded, and a round nut 17 is screw-engagedtherewith in bearing engagement with a still:1 coiled spring 2O sleevedover the. bolt. One end of the spring presses against the boss on theplate, and the tension-of the spring can be increased or decreased` byrotating the nut. Each spring is enclosed within a short section oftubing 18 sleeved over and snugly fitted upon the reduced portion of theround boss on each plate to protect the spring and provide a guide Jforthe nut at the outer end of the bolt or link, it being understoodthat'the link and nut slide back and 'forth together within the tubeduring the opening and closing movements of the door. rThe hinged platesmay have pivot connections at only one side edge thereof, or such pivotconnections may be duplicated at the other side edge as shown in dottedlines in Figs. 4 and 5, to provide a double acting hinge adapted toswing the door in either direction from its normally closed position inthe door frame.

What we claim is:

A door hinge, lcomprising separate plates having lateral projectingportions and coacting pins and openings in their face portions adaptedto permit turning movements of said plates, round bearing bosses on saidplates axially co-incident with each other, openings through said bossesin axial alignment', tubes affixed to said bosses, links pivotallyconnected in axial alignment at the meeting line of said plates andextending in slidable bearing through said openings in the bosses andinto said tubes, coil springs within said tubes upon said links bearingagainst said bosses, and screw nuts engaged with the extremities of saidlinks adapted to place said springs under compression.

Louis A. sUNDE, RICHARD H. DALTON.

,MAN

so t)

